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Old 3 Weeks Ago   #796
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Re: SEAT Marbella (Mk1 Panda replica).

Well...

definitely feeling a bit out of my depth now.

The selector doesn't go on any other splines sadly, and even with it in the 2 position it will go on the same problem occurs.

I tried fitting the stiffer spring onto both the "1 & 2" and "5 & rev" shafts to see if it would help resist 2nd gear going in when selecting reverse but it still happens.

I am beginning to think that the gear stacks are matched /shimmed to the casing. So the gear positions relative to the selector position on the casing is wrong. So could just throw the 4x4 gear stacks back in and live with it. Or... use the Y10 casing instead of the 4x4 casing (assuming it bolts onto the FIRE 4x4 bell housing). But the workshop manual states gear casing is matched to engine mounting casing ... aka bell housing so this could cause other alignment issues...

Either way, the gearbox comes out for those so...

...think I might just make sure I never go from 2nd to reverse. It's not something that needs to be done even if it does seem to happen naturally when pulling up to a parking space! And I can take the selector cover off and manually pop it out of 2nd I guess! Can't be bothered to take gearbox out again! And when it happens it doesn't cause any damage...
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Old 3 Weeks Ago   #797
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Re: SEAT Marbella (Mk1 Panda replica).

well this certainly sounds like an annoying as hell issue but like you say, its one that can be lived with... I also would just leave it for the time being, you may have a moment in the future but no real point completely dismantling now without an actual plan that will fix it as i see it.
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Old 3 Weeks Ago   #798
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Re: SEAT Marbella (Mk1 Panda replica).

Yeah, is what I am feeling now. Think I have exhausted all the possible silly mistakes. I think it must now be something which is normally set at the factory.

Using the spare 4x4 gears and Y10 casing have had a look at the reasons behind this issue.

Here are all the gears in the neutral position:


This is with reverse engaged:


as reverse engages it must mesh the idler gear (the gear at the bottom of the following image on it's own shaft):


which is why the edges are rounded to help guide them in. However if they don't mesh properly then they will push this gear up instead and this will force 2nd gear to engage as well. This is the 2nd gear selected position:



So I believe the idler gear is not the right size and perhaps this is picked from various sizes in the factory...perhaps I should have used the 4x4 one which came with this casing, rather than the Y10 one...

Anyway, think I am living with this as a risk for now. Unless new information comes to light
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Old 3 Weeks Ago   #799
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Re: SEAT Marbella (Mk1 Panda replica).

It'll be like this....totes!...

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Old 1 Week Ago   #800
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Re: SEAT Marbella (Mk1 Panda replica).

OK so been a little while since reported. I took gearbox out again to try to get to the bottom of this gear selection issue. But it's looking like something I will have to live with for now.

This time I tried fitting all the stuff from the 4x4 Panda gearbox except the diff, and the gear stack shaft which has the correct final drive output gear on it. All the gears and synchros are now from the Panda 4x4, including the reverse gear. It still knocks into 2nd when going into reverse though, so I have now made a small inspection hole right above the 1st and 2nd gear selector shaft...so I can easily knock it back out if it does it again. But the trick of making sure I never go from 2nd gear to reverse seems to hold for removing the issue anyway.

On a more positive note...after a roady test yesterday I decided to treat the car to something I wanted to do for a while...yellow headlights





Ready to receive a prop shaft... which I need to get on top of really as have let comms slide a bit with the manufacturer! It'll be a brand new, and strengthened prop hopefully.
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Old 1 Week Ago   #801
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Re: SEAT Marbella (Mk1 Panda replica).

I went the yellow bulb route when I decided I needed yellow lights



They looked cool when lit (IMO) but awful in practise, it was like driving with a couple of candles in jam jars
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Old 1 Week Ago   #802
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Re: SEAT Marbella (Mk1 Panda replica).

Quote Originally Posted by Didge3 View Post
I went the yellow bulb route when I decided I needed yellow lights

They looked cool when lit (IMO) but awful in practise, it was like driving with a couple of candles in jam jars
Yeah I actually got the desire from having a set of yellow bulbs I got from the donor Y10 turbo lights. Loved the look when lit, and these weren't too dull either but they blew and I couldn't find the same ones again. Not sure how good this will be at night, but the Marbella headlight design is much better for lighting up the road anyway. Will try to give it a test drive soon and a video as well...
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Old 1 Week Ago   #803
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Re: SEAT Marbella (Mk1 Panda replica).

Quote Originally Posted by pandamonius_maximus View Post
Yeah I actually got the desire from having a set of yellow bulbs I got from the donor Y10 turbo lights. Loved the look when lit, and these weren't too dull either but they blew and I couldn't find the same ones again. Not sure how good this will be at night, but the Marbella headlight design is much better for lighting up the road anyway. Will try to give it a test drive soon and a video as well...
I do think they look cool on Pandas and Marbellas alike of course...
Had an MOT tester tell me that yellow weren't allowed. He'd already swapped the bulbs for regular white ones and thrown my yellows away already, got very grumpy with him since yellow is legal, so be wary of that.
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